d. Evaluate any additions or subtractions from left to right.

e. If an expression is in fractional form, perform stated operations in the

numerator and denominator, then simplify if possible.

Examples:

3 + 10

13

15

15

-------- = ----

------ = ---- = 5

2-4

-2

9-6

3

A good way to remember the order of operations is to use the memory

aid, "**P**lease **e**xcuse **m**y **d**ear **A**unt **S**ally." The order for solving algebra

equations is: parenthesis, exponents, multiplication and division, addition and

subtraction.

After you have completed these exercises, turn to the end of the lesson and

check your answers with the solutions.

following mathematical statements:

a. 2 + (p - 1) = (2 + p) -1

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b. 4 + a = a + 4

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c.

1

------ (7 + e) = 1

7+e

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d. 3 X 1 = 3

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e. r (1 + 8) = r + 8r

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MD0837

1-6

Integrated Publishing, Inc. |